#BOTS fans! Remember remember the fifteenth of November. There's a small chance for snow showers Sunday night into Monday. I say small because one computer model gives us rain and another one gives us a nice thumping of snow; as in 6 inches. Wednesday 11/10 will be last day to get out and play golf so take advantage of it while you can. Rain moves in Thursday. Read the National Weather Service's discussion below.
.Long Term...(Wednesday night through Monday) Issued at 300 AM EST Tue Nov 9 2021 Big changes coming up in the long term as a potent negatively tilted trough and associated strong low pressure system will bring a quick slug of moderate to heavy rain to the area Thursday followed by much colder temperatures and periodic isolated to scattered shower activity for the weekend. Models consistent in bring a strong cold front across central Indiana Thursday afternoon. The front will interact with deep moisture feeding in from the southwest the tune of around 1 inch precipitable water amounts. This lends high confidence to widespread rain Thursday. Low level jet at 50 knots and 70 plus knot deep shear will also be in place, but lack of instability will not favor updraft growth and subsequent severe weather or even a lightning mention. Fast speed of the system suggests the rain will move east of the area early Friday evening and rainfall totals will be at best an inch and more likely less than an inch. This should not cause any flooding issues. Strong low pressure gradient will result in gusty south and southwest winds through Saturday. Colder air will rush in behind the cold front with afternoon highs only in the 40s to lower 50s Friday and even colder the rest of the weekend. The upper trough will bring another chance of showers to the area Friday afternoon and evening. Critical thicknesses and Bourgouin Method supports the possibility of a few snowflakes mixing in with the rain over the northeastern half Friday night. The next notable system will be a clipper that will bring a good chance of rain and snow showers to the area Sunday and Sunday night. Temperature advection and cloud cover considerations support well below temperatures by Friday with afternoon highs mostly in the 40s and overnight lows in the upper 20s and lower 30s. Prior to that warm advection will support well above normal temperatures in the upper 50s and lower 60s Thursday. A quicker frontal passage then expected would result in cooler highs in areas where the front passes through earlier in the day.
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